APPLICATION COLOR Determine the resistance of the resistors based on the colors of band given below. RESISTANCE Orange-blue-brown-silver gray-green-black-blue-gold-red
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- Problem ▪️ Determine the required resistance and appropriate wattage rating of a carbon-film resistor to meet the following requirements. The resistor has a 54-V IR drop when its current is 20 mA. The resistors available have the following wattage ratings: 1/8 W, 1/4 W, 1/2 W, 1 W, and 2 W.As the potential across the resistor increased, the current through the resistor increased. If thechange in current is proportional to the potential difference, the data should be in a straight lineand the y-intercept should be zero. In the two resistor examples how close is the y-intercept tozero? Is there a proportional relationship between potential difference and current? If so, writethe equation for each resistor data set in the form V = mI. Use a numerical value for theproportionality constant, m. Compare the constant in each of the above equations to the resistance of each resistor.a) Color as Orange-Yellow-Blue-Blue Average value of a resistor given code find?
- Determine the range of the resistance for the resistor shown below: Lower limit: _________ Ω Upper limit: _________ Ω NOTE: Express your answers in one (1) decimal place, with format XX.XA 20% increase in the resistance of a copper wire was noticed when itstemperature was raised above room temperature. Find the final temperature of the wire if thetemperature coefficient of resistivity for copper is 4.0×10-3 /K. [assume that the room temperature = 290 K]Consider a resistor made from a hollow cylinder of carbon as shown below. The inner radius of the cylinder is Ri= 0.20 mm and the outer radius is R0 = 0.30 mm. The length of the resistor is L = 0.90 mm. The resistivity of the carbon is =3.5105 m. (a) Prove that theresistance perpendicular from the axis is R=2L1n(R0Ri) . (b) What is the resistance?
- A 20% increase in the resistance of a copper wire was noticed when its temperature was raised above room temperature. Find the final temperature of the wire if the temperature coefficient of resistivity for copper is 4.0×10^-3 /K. [Assume that room temperature=290K]Assume the resistor you were investigating was a rectangular platemade of copper (Fig. 6); how would you determine its resistivity?A heater consists of a variable resistor (a resistor whose resistance can be varied)connected across an ideal voltage supply. To increase the heat output, should you decreasethe resistance or increase the resistance? Explain your answer. (b) A 9-μF capacitor ischarged through a 15-k Ω resistor by a 220-V power supply. How long does it require forthe capacitor to acquire 89 percent of its final charge?
- Consider the following. (a) Find the current through the resistor in the figure above. (Take R = 9 Ω.) (b) If the resistor is made of carbon, what will its resistance be when its temperature is increased by 53.0 C degrees? (The temperature coefficient of resistivity for carbon is −5.0 x 10-4 (degrees C)-1.)The LED requires a minimum current of 20.0 mA to light. Assuming that your battery is operating at 9.00 V, what would the resistance be if the LED just begins to light up when brought into contact with the end of your carbon resistor? [Answer in kΩ]Ohm's law states that the electric current flowing through a conducting wire, I is directly proportional to the potential difference across its ends, V, provided its temperature stays unchanged. Draw a labelled circuit diagram to verify this law. Explain the function of each component on the circuit.